Hey I have noticed that the games that are higher when you sort by popular have like 33 ratings, which is great for those games but some games don't have any. So try to spread out what you are rating a bit more.
Try not to just sort by popular, yes the games in popular totally deserve the ratings, but other games deserve the ratings too, so try to sort by random or karma or the ones with the least ratings so that everyone gets their game rated, instead of just some games getting tons of ratings.